Ventilator-window.



-: I INVENTOR GEORGE aaoasn'ls G. B. ROBERTS. VBNTILATOR WINDOW. APPLIOATION FILED JAN. e, 1913.

I L1@2,955. Patented July 7, 914.

2 SHEETS-SHEET 1.

WITNESSES ATTORNEYS THE NORRIS PETERS CO. PHOTD-LITHCL WASHINGTON. D. C-

G. B. ROBERTS. VENTILATOR. WINDOW.

APPLICATION FILED JAN. s, 1913.

Patented July 7, 1914 2 SHEETS-SHEET 2.

INVE/l/TUR Georqe B. Rcb rfs.

WITNESSES ATTORNEYS uniriin STATES 1 OFFICE.

.LG'EQRGE ROBERTS, on NEW YORK, 1v. .AssrGNoRor EQRTY-NINEONE- HUNDRZ HS .J AB ELA AG ,,OF T. i" ";H J AItIW-TOWN, NEW X R vENr LATon-wmpow.

Application filedianuary 8,1913.

To all whom it may concern:

Be it known-thatLGEoRen B. Roen'n'rs, a citizen of the United States, and a resident of-the city of New York, borough of Manhattan, in the county and State of New York,'have invented a new and Improved Ventilator-Window, of which the following is a full, clear, and exact description.

My invention relates to windows adapted to be used for ventilating purposes, and the object thereof is to provide a window sash that can be used in school rooms ,and other public places for the purpose of permitting the entrance into the room of a sufiicient supply of fresh air without producing a direct draft orin any other way subjecting the occupants to inconvenience, discomfort, or danger of sickness.

Reference is to be had to theaccompanying drawingsforminga part of this-specification, .in which the same characters of reference indicate the same parts in all the views.

Figure 1 is an elevation of my improved ventilator window viewed from within a room or apartment; Fig. 2 is a vertical'section; Fig. 3 is a section on the line 33 of Fig. 2; and Fig. '4 is a perspective view showing my invention in position in a window, and at the sametime illustrating a modification.

My ventilator window is in the form of a sash which is mounted to slide up and down in a window frame 1 provided with an upper sash 2 and a supplemental frame '3.

My invention relates particularly to the structure of the frame 3 and sash 4, and to this end I provide the supplemental frame 3 with an inner sash 4 hinged along its lower edge to the bottomof the frame 3 and arranged to fit the frame 3 snugly. For this purpose I provide the frame 3 with a r1b 5 which extends entirely around the inside of the frame, and I cut away the edges of the sash 4 so as to make the sash 4 fit the frame 3snugly and receive the rib 5 in the space 6 formed by cutting away the adjacent edges of the sash'4, in close engagement therewith. Preferably I bevel the rib 5 along the bottom of the frame 3 from within outwarchand undercut thesash 4 to. a corresponding extent, and I may also provide a beveled fit between the rib and the sash 4 on the other three sides of the sash if desired. This arrangement not only makes Specification .of Letters latent.

P entedJuly 7 @1914- Seria1'No.-740,803.

the entrance of drafts into the room impossible when the sash 4is in closed position with respect to the frameB, but it also prevents the entrance of rain or snow. The rib along the bottom of the frame 3 and the manner in which it engages the bottom of the sash 4 are especially useful in'this respect, since any rain, snow or hail striking the outer face of the window will pass down across the rib 5 to the sill, and thence to the outer face of the building. A suitable catch 7 will'be secured-tothe upper part of the sash to lock the frame and sash together when no ventilation is required.

The inner sash 4 carries the pane of glass, and its movement'inward of the room is limited by a pair of sector-shaped plates 8 and 9. These plates are pivoted together at their lower ends, and the plate 8 is secured to one side of the frame 3, by having its end bent over and engaged by the inner face of one ofthe guides of the window frame 1, as shown in Fig. 3. The adjacent edges of these plates are bent over as shown at 10 in order to have interfitting engagement with each other when they are extended, and near their upper edges they are provided with alined slots 11 through which is passed a pin 12. These slots are about half the width of the plates at their upper ends, and by means of the same and the pin 12 the plates 9 are permitted to have relative movement with respect to each other around their lower ends as pivots.

The plate 5) carries a rack bar 13, and the sash 4 will carry a suitable pivoted catch to engage the teeth of this rack bar and adjust the position of the sash 4 with respect to the plate 9. The outer edge of this plate 9 will be bent over as shown at15, and the adjacent side ofthe sash 4 will have a saw cut to receive the bent-over end 15 when the sash 4 is moved to its full open position. When in such position the catch 14 can be utilized to engage with the adjacent end of the plate 9, as shown in Fig. 3, to lock the frame and the plate 9 against relative movement.

The upperedge of the frame 3 will be provided with a guide strip 17 which is flush with the. top of the sash 4 and has its outer end bent over to engage the outside of the plate 9, and lateral movement of the plate with respect to the frame 3 is thus prevented. The bent-over end 10 of the inner plate 8 will be recess-ed to permit the down-turned bottom, and the rib formed along the bottom end of this catch to pass it when the plates 8 and 9 are put together.

From the above description it will be seen that air can be admitted into the room or apartment in which the ventilator ismounted, whether the frame 3 be raised or not, and this air is deflected in an upward direction so that the occupants are not subjected to the danger or discomfort caused by direct drafts. The plates 8 and 9 are movable with respect to each other owing to the provision of the slots 11 and the pin 12, and the sash 4 is movable with respect to the plate 9 because of the rack 13 and catch 14. If only a small amount of ventilation is desired the catch 14 will be manipulated so as to secure the sash 4 to the inner end of the rack 18, and if more air is needed the sash 4 can be moved back as far as the plate 9 will permit. For intermediate re uirements the teeth of the rack bar are su 1cient.- It will be seen that the slots 11 are about half the width of the upper end of the plates 8 and 9, and it is of course to be understood that the pin 12 is loosely mounted therein, so as to permit the plates 8 and 9 to be collapsed or extended whenever necessary. Full ventilation or partial ventilation can be secured as above mentioned, and when the sash 4 is in full open position the bent over end 15 will enter the saw cut 16 and prevent any draft around the end of the sash 4.

While I have shown and described but one pair of plates 8 and 9 located. at one end of the window, it is obvious that I can use similar plates 8 and 9at the other side of the sash 4 and frame 3. Such a construction involving extensible platesat both sides of the sash 4 will in fact be preferable under many conditions, since by the use of the same all danger of any direct draft will be entirely eliminated.

In the form shown in Fig. 4 I mount my inventionin a window frame 1 having an upper sash 2, a lower frame 3.and hinged in side sash 4, as in the first case. This sash 4 will fit into the frame 3, which will be rabbeted asshown at 6 along the sides and of thisframe 3 will be beveled in the manner shown at 5 in Fig. 2, to prevent the entrance of rain water. The usual catch 7 Wlll be provided to lock the sash in closed position I Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

to which the sash 4 will be opened. The upper edge of the frame 8 will be provided with guide strips 17 which have their outer ends bent over the top edges of the plates 20 and will pass between theplates 19 and 20 when the sash 4 is to be shut. i

With my ventilator carried by the frame 8 in either the form shown in Figs. 1, 2 and 3 or that showninFig. 4, I can obtain sufficient fresh air for a, room without exposing the occupants to a draft, and it will be seen, especially by reference to Fig. 4, that fresh air can be let into the room either at the bottom of the window frame or at the top thereof with both forms of my invention. Normally air will be admitted at the bottom of the window frame, as shownin Fig. 4, but if it is desiredto admit air into the room at a higher point it is only necessary topull down the upper sash 2 and raise the lower frame 3. Then, by swinging back the sash 4, ventilation can be obtained at the desired point. The form shown in Figs. 1, 2 and 3 can be operated in the same way, and, as I above stated, this form will have plates 8 j and 9 at both ends, although for convenience these plates are shown at but one end of the sash 4. s

' I wish to have it understood that the above description is illustrative only, and that I do not care to be limited to the exact details of the construction shown and described, but reserve to myself the right to make such small changes in the shape, size and arrangement of the parts as fairly fall within the scope and spirit of my invention.

Having thus describedmy invention, I

claim as new and desire to secure by Letters Patent:

In a ventilating device of the character described, a movable sash, a sector-shaped plate havlng a bent-over end, a rack bar ar-v ranged on the inner face of said plate, and a catch carried by said sash, said catch being adapted to engage said rack for holding said sash in various adjusted positions in respect to said plate, said sash being formed with a saw cut to receive the bent-over end of. said plate when the sash is at the limit of its movement with respectto'said plate, said 1 1'0 catch then serving to engage the bent-over end of said plate. v

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. Y GEORGE E. ROBERTS.

- Witnesses:

I/VM. F. NICKEL, PHILIP D. ROLLHAUS.

' Washington, D. G. 

